body {
  background-color: black;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 500;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.title {
  color: mintcream;
  text-transform: uppercase;
  margin-top: 3em;
  margin-bottom: 3em;
  font-size: 1em;
  letter-spacing: 0.3em;
}

.keyboard {
  display: flex;
  flex-direction: column;
}

.row {
  list-style: none;
  display: flex;
}

li {
  height: 3em;
  width: 3em;
  color: rgba(0,0,0,0.7);
  border-radius: 0.4em;
  line-height: 3em;
  letter-spacing: 1px;
  margin: 0.4em;
  transition: 0.3s;
  text-align: center;
  font-size: 1em;
}

#tab {
  width: 5em;
}

#caps {
  width: 6em;
}

#left-shift {
  width: 8em;
}

#enter {
  width: 6em;
}

#right-shift {
  width: 8em;
}

#back {
  width: 5em;
}

.pinky { 
  background-color: crimson;
  border: 2px solid crimson;
}
.pinky.selected {
  color: crimson;
}

.ring { 
  background-color: coral;
  border: 2px solid coral;
}
.ring.selected {
  color: coral;
}

.middle { 
  background-color: darkorange;
  border: 2px solid darkorange;
}
.middle.selected {
  color: darkorange;
}

.pointer1st { 
  background-color: gold;
  border: 2px solid gold;
}
.pointer1st.selected {
  color: gold;
}

.pointer2nd { 
  background-color: khaki;
  border: 2px solid khaki;
}
.pointer2nd.selected {
  color: khaki;
}

.fill-out-key {
  background-color: slategrey;
  border: 2px solid slategrey;
}

.selected {
  background-color: transparent;
  	-webkit-animation: vibrate-1 0.3s linear infinite both;
	        animation: vibrate-1 0.3s linear infinite both;
}

/* ----------------------------------------------
 * Generated by Animista
 * Licensed under FreeBSD License.
 * See http://animista.net/license for more info. 
 * w: http://animista.net, t: @cssanimista
 * ---------------------------------------------- */

.hit {
	-webkit-animation: hit 0.3s cubic-bezier(0.390, 0.575, 0.565, 1.000) both;
	        animation: hit 0.3s cubic-bezier(0.390, 0.575, 0.565, 1.000) both;
}

@-webkit-keyframes hit {
  0% {
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  100% {
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}
@keyframes hit {
  0% {
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  100% {
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}

@-webkit-keyframes vibrate-1 {
  0% {
    -webkit-transform: translate(0);
            transform: translate(0);
  }
  20% {
    -webkit-transform: translate(-2px, 2px);
            transform: translate(-2px, 2px);
  }
  40% {
    -webkit-transform: translate(-2px, -2px);
            transform: translate(-2px, -2px);
  }
  60% {
    -webkit-transform: translate(2px, 2px);
            transform: translate(2px, 2px);
  }
  80% {
    -webkit-transform: translate(2px, -2px);
            transform: translate(2px, -2px);
  }
  100% {
    -webkit-transform: translate(0);
            transform: translate(0);
  }
}
@keyframes vibrate-1 {
  0% {
    -webkit-transform: translate(0);
            transform: translate(0);
  }
  20% {
    -webkit-transform: translate(-2px, 2px);
            transform: translate(-2px, 2px);
  }
  40% {
    -webkit-transform: translate(-2px, -2px);
            transform: translate(-2px, -2px);
  }
  60% {
    -webkit-transform: translate(2px, 2px);
            transform: translate(2px, 2px);
  }
  80% {
    -webkit-transform: translate(2px, -2px);
            transform: translate(2px, -2px);
  }
  100% {
    -webkit-transform: translate(0);
            transform: translate(0);
  }
}